网络设备Telnet服务安全威胁及其防范措施

Security threats and counter measures related to Telnet of network devices

基于对Telnet协议的基本概念、命令以及连接建立流程,对Telnet服务存在的脆弱性和可能受到的威胁进行了分析,并对可能的风险大小进行了分析,最后,针对如何减少和防范Telnet的攻击提出了相应的措施。

Based on Telnet＇s basic concept, Telnet command and the setting up of Telnet connection, the vulnerability and threats to the Telnet services on the link and server are analyzed. At last, counter measures to the threats based on the risk analysis are proposed.